Mercedes W124

since 1985-1995 of release

Repair and car operation



W124 Mercedes
+ Governing bodies and control devices
+ MAINTENANCE
+ 2. Maintenance (diesel engines)
- ENGINE
   3.2. General data
   3.3. Repair operations on the engine established in the car
   3.4. Check of pressure of compression
   3.5. Top dead point (VMT) of the piston of the first cylinder
   3.6. Cover of a head of the block of cylinders
   3.7. Pulley cranked shaft / quencher of krutilny fluctuations and nave
   + 3.8. Cover of a driving chain
   3.9. Check and replacement of a driving chain
   + 3.10. Mechanism of a tension of a driving chain, asterisk and uspokoitel of a chain
   3.11. Intermediate shaft
   + 3.12. Drive of valves, pushers and camshaft
   + 3.13. Head of the block of cylinders
   3.14. Oil pallet
   3.15. Oil pump
   3.16. Drive flywheel / plate
   3.17. Replacement of sealing rings of a cranked shaft
   3.18. Bearing replacement in an end face of a cranked shaft
   3.19. Check and replacement of a support of the power unit
+ 4. Repair of 6-cylinder petrol SOHC engines
+ 5. Repair of 6-cylinder petrol DOHC engines
+ 6. Repair of the diesel engine established in the car
+ 7. Major maintenance of engines
+ COOLING SYSTEM
+ FUEL SYSTEM
+ 10. System of injection of BOSCH CIS-E fuel (KE-JETRONIC)
+ 11. System of injection of BOSCH HFM fuel
+ 12. Fuel system of diesel engines
+ 13. Fuel system of diesel engines
+ SYSTEMS OF START, IGNITION
+ 15. System of ignition of 4-cylinder petrol engines
+ 16. System of ignition of four-cylinder petrol engines
+ PRESTARTING HEATING
+ TRANSMISSION
+ 19. Mechanical transmission
+ 20. Automatic transmission
+ POWER SHAFTS
+ BRAKE SYSTEM
+ SUSPENSION BRACKET
+ BODY
+ ELECTRIC EQUIPMENT
+ CHECK OF MALFUNCTIONS






3.5. Top dead point (VMT) of the piston of the first cylinder

GENERAL INFORMATION

The top dead point of the piston is a point through which passes each piston at a provorachivaniye of a cranked shaft. Each piston reaches situation VMT at the end of a compression step, then again at the end of an exhaust step. For the purpose of installation of the mechanism of a gazoraspredeleniye of the engine VMT of the piston of the first cylinder is used.

Combination of a label of VMT on a pulley of a cranked shaft with the index

Groove combination on a camshaft flange with the top plane of a head of the block of cylinders

PERFORMANCE ORDER
1. Note position of the plug of a high-voltage wire of the first cylinder on a distributor cover.
2. Uncover heads of the block of cylinders.
3. For a bolt of fastening of a pulley of a cranked shaft turn a cranked shaft of the engine clockwise, the following labels will not be combined with indexes (see fig. yet. Combination of a label of VMT on a pulley of a cranked shaft with the index, groove Combination on a camshaft flange with the top plane of a head of the block of cylinders):
and – VMT label on a pulley of a cranked shaft with the index on a cover of a driving chain;
b–dredging on a flange on a forward part of a camshaft with the top plane of a head of the block of cylinders;
with – a rotor of the distributor of ignition with a groove in the case of the distributor of ignition.
4. After combination of all labels the piston of the first cylinder is in the top dead point in a compression step.